38755865421 has 96 divisors (see below), whose sum is σ = 75055921920. Its totient is φ = 19553643648.

The previous prime is 38755865419. The next prime is 38755865453. The reversal of 38755865421 is 12456855783.

38755865421 is a `hidden beast` number, since 3 + 8 + 7 + 5 + 586 + 54 + 2 + 1 = 666.

It is not a de Polignac number, because 38755865421 - 2¹ = 38755865419 is a prime.

It is a hoax number, since the sum of its digits (54) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38755865221) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 346591 + ... + 444563.

It is an arithmetic number, because the mean of its divisors is an integer number (781832520).

Almost surely, 2^38755865421 is an apocalyptic number.

It is an amenable number.

38755865421 is a deficient number, since it is larger than the sum of its proper divisors (36300056499).

38755865421 is a wasteful number, since it uses less digits than its factorization.

38755865421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98032 (or 98019 counting only the distinct ones).

The product of its digits is 8064000, while the sum is 54.

The spelling of 38755865421 in words is "thirty-eight billion, seven hundred fifty-five million, eight hundred sixty-five thousand, four hundred twenty-one".